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    2 vulnerabilities by Tatsh

    CVE-2026-55246 (GCVE-0-2026-55246)

    Vulnerability from nvd – Published: 2026-10-15 17:06 – Updated: 2026-10-15 18:27
    VLAI
    Title
    bincookie: Heap buffer overflow via unvalidated `num_pages` when parsing a `.binarycookies` file
    Summary
    bincookie is a header-only binarycookies parser. Prior to 0.1.9, bincookie_init_file() in bincookie.h allocates a buffer using the actual .binarycookies file length but trusts the file-controlled num_pages field as the loop bound for byte-swapping page_sizes entries. A crafted file can make the loop read and write beyond the heap allocation, and related unvalidated page sizes and cookie_offsets can drive additional out-of-bounds accesses in page and cookie iteration. Applications that parse an attacker-supplied binarycookies file may crash or suffer heap corruption that can potentially enable code execution. This issue is fixed in version 0.1.9.
    Severity
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-15 18:27 UTC
    CWE
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7712 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    Tatsh bincookie Affected: < 0.1.9
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-55246 (GCVE-0-2026-55246)

    Vulnerability from cvelistv5 – Published: 2026-10-15 17:06 – Updated: 2026-10-15 18:27
    VLAI
    Title
    bincookie: Heap buffer overflow via unvalidated `num_pages` when parsing a `.binarycookies` file
    Summary
    bincookie is a header-only binarycookies parser. Prior to 0.1.9, bincookie_init_file() in bincookie.h allocates a buffer using the actual .binarycookies file length but trusts the file-controlled num_pages field as the loop bound for byte-swapping page_sizes entries. A crafted file can make the loop read and write beyond the heap allocation, and related unvalidated page sizes and cookie_offsets can drive additional out-of-bounds accesses in page and cookie iteration. Applications that parse an attacker-supplied binarycookies file may crash or suffer heap corruption that can potentially enable code execution. This issue is fixed in version 0.1.9.
    Severity
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-15 18:27 UTC
    CWE
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7712 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    Tatsh bincookie Affected: < 0.1.9
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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